Type-bar-casting machine



March 23 1926.

15mm w. J; mwm

TYPE BAR CASTING MACHINE Filed Sept. 12, 1922 5 SheetwShwt 1 awoewto'a MAL/14M JfEw/N March 23 1926. 1,577,801 W. J. IRWIN TYPE BAR CASTIHG MACHINE Filed Sept. 12, 1922 5 Sheath-Shut 3 March 23 1926. 1,577,801

W. J. Rm/1N TYPE BAR CASTING ivmCIYINE Filed Sept. 12, 1922 5 Sheets-Sheet 5 avwewcoa MAL/HM IRW/N 33) Mom W1 March 23 1926.

W. J. IRWIN TYPE BAR CASTING MACHINE Filed Sept. 12, 1922 s Sheets-Shani 4 avwemtoz W/u mm J IEW/N Mom m1;

W. J. IRWIN TYPE BAR CASTING MACHINE March 23 1926.

Filed Sept. 12, 1922 5 SheBbS-ShOOt 5 w 11.. I? a y fa 3 3 @555? {if 2;?

lllll. IE II WQ 4 I. N k N "m Ta a bw & m 4 w Wm. WK m wk TN avwembo'c MAL/14M JjIM/l/V 351 Mime/1 Z Fatented Mar. 23, 1925.

warren stares WILLIAM J. IRWIN, or racer/LA, WASHINGTON.

TYPE-BAR-CASTING JlrIACI-IINE.

Application filed. September 12, 1922. Serial lilo. 587,678.

To all 20/ 10222 it may concern:

Be it known that 1, WILLIAM J. IRWIN, a citizen of the United States, and a resident of Tacoma, Pierce County, ashington, have invented certain new and useful Improvements in TypeBar-Casting Machines, of which the following is a specification.

lily invention relates to improvements in type bar casting machines, and more particularly to machines of that character for the casting of lines of type in relief from a series of matrices with intaglio characters thereon.

It is the principal object of the invention to provide a type bar casting machine of a simplified character embodying a casting mold, a movable press platform upon which matrices may be arranged for the casting of a line of words or phrases, means for moving the platform to position the matrices in proper relation with the mold for casting, means for delivering casting metal into the mold and mechanism for returning the parts to normal position and for ejecting the cast. bar from the mold.

Other objects of the invention reside in the various details of construction of the operating parts of the machine, the manner in which they are assembled and in their'mode of operation.

In accomplishing the objects of the invention, I have-provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, wherein Figure 1 is a perspective view of a type bar casting machine embodying the present invention.

Figure 2 is a perspective view of a matrix that is used in connection with the machine.

Figure 3 is a plan view of the machine with matrices arranged thereon for casting a type bar.

Figure 4c is a transverse vertical section taken substantially on the line, H in Figure 3.

Figure 5 is a vertical section taken on the line 5 -5 in Figure 4.

Figure 6 is an under, side view of the line spreader operating mechanism.

Figure 7 is a vertical, sectional view taken on the line 77 in Figure 4 with the matrix, supporting platform in raised position for casting.

Referring more in detailto the drawings, 1 esignates the bas trees eft e machine which is of rectangular form, of a box like character, and divided transversely by partition walls 2 and 3, forming three separate compartments, 4,. 5, and 6. The compartment, 4- is used for the assorting of the matrices used with the machine, the central compartment 5 contains a vertical movable press platform 7, and the compartment 6 contains the metal melting pot 8 and has a top wall 9 whereon certain operating parts of the machine are mounted. Mounted upon the wall 9 is a bracket 10 having an arm 11 extending laterally therefrom to a position approximately centrally over the platform 7 and at its end having a type bar mold 1 formed therein and into which molten metal from the melting pot 8 may be delivered through a pipe 13 leading from the pot into the side of the mold, as is shown in. Figures 1 and 4.

The pot, in this instance,kis heatedby an electric heating element 15 and metal is forced through the pipe 13 by the actuation of a pump piston 16 operating within a cylinder 17 within the pot. Said piston being mounted at the lower end of a rod 18 connected at its upper end with a crosshead 19, which, in turn, is connected at its ends by means of links 20, eccentrically to two intermeshing gear wheels 21 and 22 that are rotatably supported in a frame 23 that is mounted upon the top wall of the compartment 6. A turning lever 24 is attached to one of the gears and when this is swung in the arc of a circle it causes downward moving of the pump and the forcing of a charge of metal into the casting mold through the pipe 13.

Mounted for vertical slidable movement on the bracket 10 is a type bar ejector slide comprising a body portion 25 that slidably encloses the vertical portion of the bracket 10, a laterally extending portion 26 that lies adjacent to bracket arm 11 and a downwardly extending head portion 27 which projects intothe top of the casting mold 12 and which has depending fingers 28 and 28' at its ends which form the end walls of the mold and which have protuberances 29 thereon which serve to form indentures in the ends of the lugs cast therein.

Mounted on the platform 7 isa plate 30 having a flange 31 up-turned at one edge that'exten'ds transversely with respect to the plane of the mold 12 also Est ma ed h plate is a bracket 32 whereon a finger 33 is pivotally supported to extend horizontally beneath the mold 12, as is shown in Figures 1 and 4, and which is yieldingly held against downward movement by means of a coiled spring 34 disposed beneath its pivoted end.

The matrices 05 used with the present ma- 'ne consist of flat steel bars of the characer illustrated in Figure 2, with the type orming characters 37 in intaglio along one thereof.

13 .1. e The matrices also have slots in the body portions that are alined with each character thereon and are adapted to receive the linger therein.

hen it desired to set up a line, the matrices are arranged on the linger in such order that the letter forming characters will be aligned properly beneath the mold, the matrices being arranged one against the other, as shown in Figure 4, with the first placed matrix seated against the flange 81 of plate 30, and with the upper end of the slot 38 seated against a shoulder 39 on the finger 33.

.Vhen it is desired to cast a type bar atter the line of matrices has been assembled, the. platform 7 is raised vertically from the position in which it is shown in Figure 4 to the position as shown in Figure 7, so that thematrices are lifted into proper relation for casting with the type mold 12. Raising of the platform is accomplished by means of a lever 40 extending upward from one end of a rod 41 that is ro-tatively supported transversely beneath the platform Fixed on the rod 41, near its ends, are gear wheels 42 and 48 which mesh with similar gear wheels 44 and 45 on the ends of a rod 46 rotatively supported parallel with rod 41. Fixed eccentrically to the gear wheels are links 47, each of which, at its upper end, is pivotally connected to the platform, the arrangement being such that swinging movement of the lever 40 causes rotation of the shaft 41 and all of the gear wheels, and this, by means of the link connection, efiiects a vertical raising oi the platform.

Extending from the rearward edge of the plate 30 is an arm 50, see Figure 4, the end of which has an idle movement between two vertically placed stops 51 and 52, extending laterally from the body portion or the type bar ejector arm. When the platform 7 is moved upwardly, the arm is disengaged for a time from the stop 50 but at the time when the upper edge of the .line of i'i'iatrices is on a horizontal level with the lower endsof the arms 28 28 and within guides 12" depending from the mold, the arm 50 engages with the stop and, as the platform con'tinues'to advance upwardly, the ejector arm is raised accordingly so that the matrices retain their relation with respect to the arms .2$28

hen the matrices have been raised sutficiently to engage with the lower edge of the mold, as shown in dotted lines in F ig ure 4, the mold is thereby closed and casting may be done. This is effected by swinging the pump lever 24 downwardly to ause a charge of molten metal to be forced through the pipe 13 into the mold, and after this has been done, the plat form is lowered by swinging the lever 40 back to starting position. As the platform moves downwardly, the arm 50 is brought again into engagement with the stop 51 of the ejector arm, causing it to move downwardly to carry the cast slug into the opening between the depending guideways of the mold, whereupon it is pressed outwardly from the arms by means of a spring arm 54 that is fixed to the arm 26, and is delivered thereby on to a swinging carriage 55, presently described, whereby it is placed on a receiving rae; 5h.

The carriage 55 consists of a vertical post 5? revolubly supported from the bracket 10 and having a laterally extending arm 58 provided at its end with fingers which are pivotally fixed thereon and are adapted to receive therein the cast type bars as the latter are pressed frombetween the arms 2828 of the ejector by action of the spring 54. The post as shown in Figure 5, has an arm 60 fixed thereto, to which is connected one end of a link 61 which, at its other end, is pivotally fixed to the platform so that when the latter is raised, the post will be rotate-d to cause the arm to be swung over the receiving rack 56. A. tilting arm 62 is fixed to bracket 10 and extends over the rack in a manner to be engaged by the carriage to tilt the latter so that the bars will be discharged into the rack. As the platform moves downwardly, the arm is swung back in time that the cast bar will be delivered onto its fingers.

Word spacing and line spreading de vices are provided as is illustrated best in Figures 3 and 7; the spreading feature being desired in order to tighten the line of matrices within the mold. The devices consist of two lJ-shaped pieces 65 and 66 that are inserted between matrices. Their end portions are tapered and overlapped the platform betweenthe plates, as shown s li' s i 6; a d h s s wr eaedat 1 posite sides of its pivot point by means of links 76 and'77 with the opposite plates. At the end of the lever is connected one end of a link 78 which, atits other end, connects with one arm of a bell crank 79 sup-- ported from the under side of the platform in a bracket 80; the other arm being connected by means of a spring 81 with the base frame. will be seen that after a line of matrices has been placed on the platform, and the spreaders placed in the line as illustrated, upward movement of theplatform ill, by the connections shown in Figure 6, cause the spacers to be drawn togetherand the line spread tightly between the arms 28* 28. hen the platform is lowered, a reverse action takes place and the line is loosened.

Assuming that the device is so constructed, its operation is briefly as follows: To arrange a line for casting a type bar, the matrices are arranged on the finger 33 so that the characters thereon will form the words or phrase desired. The spreading and line tightening members are then inserted in the line in desired numbers. lVhen this is done, the platform is raised, by lateral swinging of the lever 40, to bring the matrices tightly against the open lower edge of the casting mold. The pump lever 2-:l is then actuated to force a charge of metal into the mold to cast the bar. The platform is then moved downwardly by a return of lever 4:0, and as it goes downwardly the arm 50 engages stop 51 to cause the ejector arm to remove the bar from the mold and it is delivered by pressure .of spring 54 onto the carriage which is then swung rearwardly to deposit the bar on the rac The matrices are then removed and a new line is set.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent, is:

1. In a type bar casting machine, a housing forming the side walls of a mold, a type bar ejector slidably contained in the housing and forming the end walls and base of the mold, a series of matrices, means for moving the matrices into and from east ing relation with the mold, means for actuating the ejector to advance the cast bar from the housing and yieldable means for pressing the cast bar from the ejector after the latter has been advanced.

2. A type bar casting machine comprising in combination a casting mold, a matrix supporting platform, a series of matrices and means for holding them in casting relation on the platform, means for shifting the platform to move the matrices into and from casting relation with the mold, means for injecting metal into the mold and an nectar ar perable y retract ng m e lVith this construction, it

ment of the platform for ejecting cast slugs from the mold.

3. A type bar casting machine of the class described comprising in combination, a fixedly supported casting mold, plat form movable from and toward the mold, a series of matrices, means on the platform for retaining the matrices in casting relalation, means operable to move the platform to position the matrices against the mold for casting, a pump operable to inject casting metal into the mold, a type bar receiving rack, an ejector arm operable by retractive movement of the platform to eject cast bars from the mold and a swingcarriage for receiving the slugs from the mold and for placing them on. the re ceiving rack.

a. A type bar casting machine of the class described, comprising in combi' ation a casting mold, means for injecting casting metal thereinto, matrix supporting platform, a matrix alining finger yieldably supported from the platform, having a positioning stop shoulder thereon against which he first placed matrice is located, series of matrices each with type forming characters therein and with slots corresponding to said characters for receiving said finger, and means for raising and lowering the platform to move the matrices alined on the linger into and from casting relation with the mold.

5. In a type bar casting machine of the class described, a casting mold, a platform movable from and toward the mold, a plate fixed to the platform with a matrice ali ing flange formed thereon, bracket mounted on the plate and a matrice alining finger supported from the bracket, a series of matrices, each comprising arectangular bar with type forming characters along one edge thereof and with slots in the head portions thereof corresponding to said characters and adapted to receive the finger therethrough and to be positioned against said retaining flange whereby the matrices are held properly alined with respec' to the mold for casting.

6. A type bar casting machine of the character described comprising a frame structure, a casting mold supported above the frame With a downwardly opening mouth, a platform movable in the frame, a series of matrices, means on the platform for retaining the matrices in line forming relation, means for lifting the platform to move the matrices against the mouth of the mold for casting, a melting pot for casting metal, a pump operable to inject metal from the pot into the mold, an ejector arm, and means on the platform for actusting said arm when the platform is lowered to initial position to cause said arm to eject the cast bar from the mold.

7?. A ype bar ast ng mac ine mprising in combination, a casting mold and means for injecting metal thereinto, a matrix supporting platform, a series of matrices, means on the platforn'i for holding the matrices alined for casting, expandable spreading devices between some of the matrices, means for raising the platform to lift the matrices into casting relation with the mold, and for expanding the spreading devices to effect the tightening together of the matrices after they have been advanced against the mold.

8. all type ar casting machine comprising in combination, a casting mold having a downwardly opening mouth and guide arms extended downwardly at opposite ends of the mouth, means for injecting casting metal into the mold, a matrix supporting platform mounted beneath the mold, a series of matrices, means on the platform for hold ing the matrices in alinement for casting, paired wedge shaped spreading means disposed in overlapped relation between some of the matrices, a lever operabl'y connected for raising the platform to position the mat rices in casting relation against the mouth of the mold, and means operably connected with the platform shifting means for moving the spreading devices to tighten the matrices together between the mold guides and for effecting the release by retraction of the platform.

9, A type bar casting machine comprising a frame structure, a bracket mounted on the frame, a casting mold supported by the bracket; said mold having a downwardly opening mouth and guide arms at opposite ends of the mouth, a platform mounted for vertical. shifting beneath the mold, a series of matrices, means on the platform for retaining the matrices alined for casting, spreading devices located between some of the matrices, means for raising the platform to position the matrices against the mouth of the mold for casting, means operably connected with the platform shifting means for moving the spreading devices to tighten the matrices together between said guide arms of the mold, means for injecting casting metal into the mold, a bar receiving rack, an ejector arm operable by downward movement of the platform to eject the cast bars from the mold, a swingsupported carriage adapted to receive bai s thereon from the mold and means connected with the platform for moving the carriage between the mold and rack.

Signed at Seattle, ll ashington, this 6th day of September, 1922,

WILLIAM J. IRlVIN. 

